Address comments

Author: rasmus-kirk

.github/workflows/release-reproducible-smart-contract.yaml

@@ -32,7 +32,7 @@ jobs:
           echo "rust_version=$RUST_VERSION" > "$GITHUB_OUTPUT"
       - uses: actions-rust-lang/setup-rust-toolchain@v1
         with:
-          toolchain: ${{ env.RUST_VERSION }}
+          toolchain: ${{ steps.meta.outputs.rust_version }}
           target: wasm32-unknown-unknown
       - name: Build Docker image
         env: